PHP Socket网络操作类定义与用法示例

本文实例讲述了PHP Socket网络操作类定义与用法。分享给大家供大家参考,具体如下:

web前端测试:

<html>

<head>

<title>test</title>

<script>

g_xmlHttpReq = new XMLHttpRequest();

function onReplyCallback()

{

if(g_xmlHttpReq.readyState==4 && g_xmlHttpReq.status==200)

{

alert(g_xmlHttpReq.responseText);

}

}

function on_stop_service()

{

var cmd = document.getElementById("inCmd").value;

g_xmlHttpReq.open("GET","./service/main.php?cmd=" + cmd,true);

g_xmlHttpReq.onreadystatechange=onReplyCallback;

g_xmlHttpReq.send(null);

}

</script>

</head>

<body>

<input type="text" id="inCmd">

<hr>

<button onclick="on_stop_service()">关闭服务</button>

</body>

</html>

mysocket.php:

<?php

class Connector

{

public static $instance=null;

public $conn;

private function __construct()

{

set_time_limit(0);

$ip = '192.168.238.1';

$port = 8888;

if(($this->conn = socket_create(AF_INET,SOCK_STREAM,SOL_TCP)) < 0)

{

echo "socket_create() 失败的原因是:".socket_strerror($this->conn)."\n";

}

$result = socket_connect($this->conn, $ip, $port);

if ($result < 0) {

echo "socket_connect() failed.\nReason: ($result) " . socket_strerror($result) . "\n";

}else {

echo "连接OK\n";

}

}

public static function getInstance()

{

if(is_null(self::$instance))

{

self::$instance = new Connector;

}

return self::$instance;

}

public function sendMsg($msg)

{

socket_write($this->conn,$msg);

}

public function getMsg()

{

$clients = array($this->conn);

while(true)

{

$read = $clients;

$wrSet = NULL;

$errSet = NULL;

if(socket_select($read, $wrSet,$errSet, 3) < 1)

{

continue;

}

foreach($read as $read_sock)

{

$data = @socket_read($read_sock,1024,PHP_BINARY_READ);

socket_close($this->conn);

return $data;

}

}

}

}

?>

main.php(调用场所):

<?php

require_once('mysocket.php');

$con = Connector::getInstance();

$req = $_GET['cmd'];

$con->sendMsg($req);

$ret = $con->getMsg();

echo $ret;

?>

应用说明:

客户端ajax发起请求调用Php,然后php借助socket进一步发起请求给C++模块。

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希望本文所述对大家PHP程序设计有所帮助。

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